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Title:
MULTIPLIERLESS PYRAMID FILTER
Document Type and Number:
WIPO Patent Application WO2002054350
Kind Code:
A3
Abstract:
A multiplierless pyramid filter is described comprising a sequence of scalable cascaded units, each of said units comprising a delay unit and three the adders, said delay unit the adders being coupled to produce a higher order pyramidally filtered output signal sample stream and state variable sample stream from an input signal sample stream and a lower order pyramidally filtered output signal sample stream and state variable signal stream.

Inventors:
ACHARYA TINKU (US)
Application Number:
US0150533W
Publication Date:
January 23, 2003
Filing Date:
December 27, 2001
Export Citation:
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Assignee:
INTEL CORPORATION
ACHARYA, TINKU
International Classes:
G06T5/20; G06T1/20; G06T5/00; H03H17/02; H04N1/40; H04N1/409; (IPC1-7): H04N7/26; G06T9/00
Foreign References:
US5359674A1994-10-25
US4674125A1987-06-16
US4829378A1989-05-09
Other References:
LI D: "MINIMUM NUMBER OF ADDERS FOR IMPLEMENTING A MULTIPLIER AND ITS APPLICATION TO THE DESIGN OF MULTIPLIERLESS DIGITAL FILTERS", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II: ANALOG AND DIGITAL SIGNAL PROCESSING, IEEE INC. NEW YORK, US, vol. 42, no. 7, 1 July 1995 (1995-07-01), pages 453 - 460, XP000524120, ISSN: 1057-7130
DEMPSTER A G ET AL: "COMMENTS ON MINIMUM NUMBER OF ADDERS FOR IMPLEMENTING A MULTIPLIERAND ITS APPLICATION TO THE DESIGN OF MULTIPLIERLESS DIGITAL FILTER", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II: ANALOG AND DIGITAL SIGNAL PROCESSING, IEEE INC. NEW YORK, US, vol. 45, no. 2, 1 February 1998 (1998-02-01), pages 242 - 243, XP000771370, ISSN: 1057-7130
HARALAMBOS SAHINOGLOU ET AL: "A HIGH-SPEED PYRAMID IMAGE CODING ALGORITHM FOR A VLSI IMPLEMENTATION", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, IEEE INC. NEW YORK, US, vol. 1, no. 4, 1 December 1991 (1991-12-01), pages 369 - 374, XP000249319, ISSN: 1051-8215
JAEHNE B: "Digitale Bildverarbeitung", 1991, SPRINGER-VERLAG, BERLIN HEIDELBERG NEW YORK, XP002208396
BURT P J ET AL: "THE LAPLACIAN PYRAMID AS A COMPACT IMAGE CODE", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE INC. NEW YORK, US, vol. COM 31, no. 4, 1 April 1983 (1983-04-01), pages 532 - 540, XP000570701, ISSN: 0090-6778
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